Cxle8619 is a high brightness LED Driver with voltage reduction, constant current and high efficiency. Cxle8619 is especially suitable for wide input voltage range applications, with input voltage range from 5.5V to 36V, and cxle8619 has high input voltage
Inhibition ratio. The cxle8619 uses a built-in power switch with low on resistance, which simplifies the peripheral circuit of the chip. With only a few external components, it can realize the function of voltage reduction and constant current drive, and can realize the brightness through the dim pin
Control function. Cxle8619 sets the output current through an external resistor, the maximum output driving current can reach 800mA, and the high-end current detection can reach a current accuracy of ?4%. Due to the hysteresis control, cxle8619 has a very fast response speed to load transients, with a maximum operating frequency of 1MHz

-
[ CXLE8619 ]"
目录
1.产品概述 2.产品特点 3.应用范围 4.技术规格书下载(PDF文档)
一.产品概述
CXLE8619是一款降压、恒流、高效率的高亮度LED驱动器。CXLE8619特别适合宽输入电压范围的应用,输入电压范围从5.5V到36V,并且CXLE8619 对输入电压具有高的抑制比。CXLE8619 采用内置的低导通电阻的功率开关管,简化了芯片的外围电路,只需很少的外接元件就可实现降压、恒流驱动功能,并可以通过DIM 引脚实现辉度控制功能。CXLE8619 通过一个外接电阻设定输出电流,输出驱动电流最大可达
800mA,高端电流检测达到±4%的电流精度。由于采用滞环控制方式,CXLE8619对负载瞬变具有非常快的响应速度,最高工作频率可达1MHz。
CXLE8619采用ESOP8 封装。
二.产品特点
最大输出驱动电流:800mA
电流精度:±4%
高效率:95%
高端电流检测,恒流输出
辉度控制,最大辉度控制频率:20KHz
滞环控制:无需补偿
最高工作频率:1MHz
最高输出功率:20W
5V,2mA 片上稳压器
三.应用范围
建筑、工业、环境照明
汽车尾灯、雾灯、指示灯、应急灯、
MR16 及 LED灯
四.技术规格书(产品PDF)
需要详细的PDF规格书请扫一扫微信联系我们,还可以获得免费样品以及技术支持!
五.产品封装图
六.电路原理图
七.相关芯片选择指南
LED驱动 > 降压恒流 | ||||||
产品型号 | 输入电压 | 输出电压 | 输出电流 | 工作效率 | 产品封装 | 备注 |
CXLE8615/CXLE8616 | 92% | ESOP8 | ||||
CXLE8617 | 6-100v | 低于输入 | 3A | 95 | sot23-6 | 可做足3A |
CXLE8618 | 2.5-100V | 低于输入电压 | 几十毫安到 2.5A | 90% | SOT23-6 | 降压恒流 |
CXLE8619 | 5.5-36V | 低于输入电压 | 800mA | 95% | SOP-8 | 降压恒流 |
CXLE8620 | 5.5-36V | 低于输入电压 | 3A | 95% | SOT23-6 | 降压恒流 |